| Letter, A. B. Zhizhchenko->A.P. Ershov, 03.12.1980 National comittee of soviet mathematicians requests to give the title and abstract of the paper for submission to the International Mathematical Congress in 1982
Abstract of MCM possible Paper, 12.12.1980"Abstract computability based on formal invariants indicating computatio history"
Letter, M. Ezhova->A.P. Ershov, 18.03.1981Invitation for a one-week visit to Warsaw University
Flights shcedule, 01.07.1982(?)to and from Warsaw
Letter, ->A.P. Ershov, 30.04.1982with information about the Congress; request to fill in the information card
Letter, 15.06.1982with enclosed financial report of the International Mathamatical Union
Enclosure ¹1, 15.06.1982to the letter of 15.06.82 - audit report for 1978
Enclosure ¹1, 15.06.1982to the letter of 15.06.82 - audit report for 1979
Enclosure ¹1, 15.06.1982to the letter of 15.06.82 - audit report for 1980
Enclosure ¹1, 15.06.1982to the letter of 15.06.82 - audit report for 1981
Enclosure ¹2, 15.06.1982to the letter of 15.06.82 - the list of IMU members
Enclosure ¹3, 15.06.1982to the letter of 15.06.82
Enclosure ¹4, 15.06.1982to the letter of 15.06.82
Enclosure ¹5, 15.06.1982to the letter of 15.06.82
Enclosure ¹6, 15.06.1982to the letter of 15.06.82
Telegram (darft), A.P. Ershov->W. M. Turski, 02.08.1982about planned arrival to Warsaw next week
Telegram, W. M. Turski->A.P. Ershov, 04.08.1982with phone numbers and request to call while in Warsaw
Letter with attachment, 06.08.1982about Congress organization; enclosed are working materials, agenda and invitation
Enclosure ¹7, 15.06.1982Proposals for IMU budget 1983-1986
Letter (hand-written), A.P. Ershov->M. Ezhova, 13.08.1981
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